Ethylene glycol, at 100ºC, is cooled along a vertical flat plate at 20ºC. The plate is 1 m high and 0.5 m wide. Estimate the heat transfer.
What will be an ideal response?
The heat transfer is our customary Newton’s law of cooling. The area of heat transfer is 0.5 m^2 and the temperature difference is 80K. Using Equation 5-43 with Table 5-1 will give the convective heat transfer coefficient. The Prandtl number is determining using properties of ethylene glycol from appendix Table B-3 and the Prandtl number is 198.6. The Grashof-Prandtl product, or Rayleigh number is
You might also like to view...
Both He3 and He4 are important in the proton-proton cycle. How are they different, and which comes first?
What will be an ideal response?
Of the elements in your body, the only one not formed in stars is
A) hydrogen. B) calcium. C) carbon. D) iron. E) oxygen.
What is the frequency, in hertz, of a sound wave (v = 340 m/s) with a wavelength of 68 m?
a. 5 Hz b. 23120 Hz c. 340 Hz d. 0.2 Hz
Exclusion Principle: In a hydrogen atom, a given electron has n = 7. How many possible values can ? have?
A. 6 B. 7 C. 15 D. 98